[kirbyoftville]

If you drive or run it for about ten minutes, so it's good and hot, then cut it off and come back 5 minutes later it runs fine. Just driving it doesn't make the problem go away it seems, you need to cut it off and let it sit a few minutes.
4.3 L ENGINE
maybe I should elaborate.... It skips and jumps like a car with a stuck choke, but a 93 blazer 4.3 has fuel injection right? It don't look like no carb I've ever seen. I've tried carb cleaner, did that first , but upon review of the symptoms I don't expect results from that. Has to be a sensor or something that is affected by heat, right?